#include "stdio.h"
unsigned char ErrorBCC(unsigned char D1, unsigned char D2){
	// D1==D2 : 0, 2ビット以上異なるとき 0xFF, 
	// 1ビット異なるときビット位置のみ1, 他は0となるデータ
	if(D1 == D2) return 0;
	unsigned char R =D1 ^ D2;
	for(unsigned char DF=R; DF!=0; DF>>=1)
		if(DF & 1) {if (DF == 1) return R; else return 0xFF;}
	return R;
}
void printBit(unsigned char D){
	for(unsigned char M=0x80;M!=0; M>>=1) printf("%d ", D&M?1:0);
}
void printBCC(unsigned char D1,unsigned char D2, unsigned char R){
	printf("\n\n BCC Check");
	printf("\n  %2X  ", D1); printBit(D1);
	printf("\n  %2X  ", D2); printBit(D2);
	printf("\n  -------------------");
	printf("\n  %2X  ", R); printBit(R);
}
int main(int argc, char* argv[])
{
	unsigned char A1=0x9C, A2=0x9C;
	unsigned char B1=0x9C, B2=0x94;
	unsigned char C1=0x9C, C2=0x95;
	printBCC(A1, A2, ErrorBCC(A1,A2));
	printBCC(B1, B2, ErrorBCC(B1,B2));
	printBCC(C1, C2, ErrorBCC(C1,C2));
	printf("\n\n");
	getchar();
	return 0;
}